I appear to be having this problem in Kubuntu Hardy. I don't know if I had it in gutsy, because my hibernation didn't work.
Neither my ethernet nor my wireless come back up in knetworkmanager. I can start my ethernet with "sudo dhclient" (pasted below), but knetworkmanager still doesn't recognise it. $ sudo dhclient Internet Systems Consortium DHCP Client V3.0.6 Copyright 2004-2007 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ wmaster0: unknown hardware address type 801 SIOCSIFFLAGS: No such device SIOCSIFFLAGS: No such device SIOCSIFFLAGS: Operation not supported SIOCSIFFLAGS: Operation not supported wmaster0: unknown hardware address type 801 Listening on LPF/wlan0/00:0b:7d:15:75:6e Sending on LPF/wlan0/00:0b:7d:15:75:6e Listening on LPF/wmaster0/ Sending on LPF/wmaster0/ Listening on LPF/eth0/00:12:3f:21:23:9e Sending on LPF/eth0/00:12:3f:21:23:9e Sending on Socket/fallback DHCPDISCOVER on wmaster0 to 255.255.255.255 port 67 interval 5 send_packet: Network is down receive_packet failed on wlan0: Network is down receive_packet failed on wmaster0: Network is down DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8 send_packet: Network is down DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 DHCPOFFER from 192.168.1.1 DHCPREQUEST on eth0 to 255.255.255.255 port 67 DHCPACK from 192.168.1.1 bound to 192.168.1.9 -- renewal in 388043 seconds. $ uname -a: Linux naught101-laptop 2.6.24-12-generic #1 SMP Wed Mar 12 23:01:54 UTC 2008 i686 GNU/Linux $ lspci |grep Broadcom: 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express (rev 01) 02:03.0 Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 03) -- Network cards not detected when resuming from suspend / hibernate https://bugs.launchpad.net/bugs/40125 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs